Annotation of dietlibc/t.c, revision 1.32
1.1 cvs 1: #include <unistd.h>
2: #include <endian.h>
3: #include <stdlib.h>
4: #include <dirent.h>
5: #include <pwd.h>
6: #include <stdio.h>
7: #include <assert.h>
8: #include <sys/mount.h>
1.7 fefe 9: #include <time.h>
1.9 fefe 10: #include <sys/stat.h>
1.10 fefe 11: #include <stdio.h>
1.12 fefe 12: #include <arpa/inet.h>
1.13 fefe 13: #include <sys/sem.h>
1.14 fefe 14: #include <sys/shm.h>
1.17 fefe 15: #include <math.h>
1.20 fefe 16: #include <termios.h>
1.22 fefe 17: #include <netdb.h>
1.1 cvs 18:
1.17 fefe 19: #if 0
1.16 fefe 20: int compint(const void *a,const void *b) {
21: /* printf("comparing %d with %d\n",*(int*)a,*(int*)b); */
22: return (*(int*)a-*(int*)b);
23: }
24:
25: #define SIZE 100000
26: #define LOOKFOR ((SIZE/2)-2)
27:
28: int array[SIZE];
29:
30: #define rdtscl(low) \
31: __asm__ __volatile__ ("rdtsc" : "=a" (low) : : "edx")
32:
33: static unsigned int seed=1;
34:
35: static int rand() {
36: return ((seed = seed * 1103515245 + 12345) % ((unsigned int)RAND_MAX + 1));
37: }
1.17 fefe 38: #endif
1.16 fefe 39:
1.24 fefe 40: extern double atof(const char *c);
41:
1.12 fefe 42: int main(int argc,char *argv[]) {
1.32 ! fefe 43: char buf[512]="foo";
! 44: strncat(buf,"barbaz",3);
! 45: puts(buf);
! 46: #if 0
1.31 fefe 47: time_t oink=time(0);
48: struct tm *duh=localtime(&oink);
49: strftime(buf,512,"%A %B %Y\n",duh);
50: puts(buf);
1.32 ! fefe 51: #endif
1.31 fefe 52: #if 0
1.28 fefe 53: struct in_addr bar;
54: struct hostent *foo;
1.29 fefe 55: /* inet_aton("160.45.10.8",&bar); */
56: foo=gethostbyname("zeit.fu-berlin.de");
57: /* foo=gethostbyaddr(&bar,4,AF_INET); */
1.30 fefe 58: if (foo)
59: printf("%s -> %s\n",foo->h_name,inet_ntoa(*(struct in_addr*)foo->h_addr));
1.22 fefe 60: /* printf("%g %g\n",1e-10,1e10); */
1.31 fefe 61: #endif
1.18 fefe 62: #if 0
1.17 fefe 63: double d=0.0;
64: long long t=0x12345678ABCDEF01;
65: d/=0.0;
66: printf("%d %llx\n",__isnan(d),t,*(long long*)&d);
1.18 fefe 67: #endif
1.17 fefe 68: #if 0
1.16 fefe 69: int i,j;
70: long a,b,c;
71: int *res;
72: printf("%p\n",malloc(0));
73: qsort(array,2,sizeof(int),compint);
74: for (i=0; i<SIZE; ++i)
75: array[i]=rand();
76: rdtscl(a);
77: qsort(array,SIZE,sizeof(int),compint);
78: rdtscl(b);
79: j=array[LOOKFOR];
80: res=bsearch(&j,array,SIZE,sizeof(int),compint);
81: rdtscl(c);
82: printf("%lu cycles sort, %lu cycles bsearch\n",b-a,c-b);
83: for (i=0; i<SIZE-1; ++i)
84: if (array[i]>array[i+1]) {
85: printf("qsort does not work, index %d: %d > %d\n",i,array[i],array[i+1]);
86: return 1;
87: }
88: if (*res!=j)
89: printf("besearch does not work, returned %p (%d) instead of %p (%d)\n",res,res?*res:-1,array+LOOKFOR,j);
90: /* printf("array={%d,%d,%d,%d,%d}\n",array[0],array[1],array[2],array[3],array[4]); */
1.17 fefe 91: #endif
1.13 fefe 92: #if 0
1.12 fefe 93: struct in_addr duh;
94: printf("%d\n",inet_aton(argv[1]?argv[1]:"10.0.0.1",&duh));
95: printf("%x\n",duh.s_addr);
1.13 fefe 96: #endif
1.12 fefe 97: /* printf("%-19s %10lu %9lu %9lu %3d%% %s\n","/dev/ide/host0/bus0/target0/lun0/part2",8393688,705683,1337084,85,"/"); */
1.11 fefe 98: #if 0
1.10 fefe 99: char buf[100];
100: fgets(buf,100,stdin); printf("got %d bytes\n",strlen(buf));
101: fgets(buf,100,stdin); printf("got %d bytes\n",strlen(buf));
1.11 fefe 102: #endif
1.9 fefe 103: #if 0
1.7 fefe 104: struct tm duh;
105: time_t t;
1.8 fefe 106: time(&t);
107: gmtime_r(&t,&duh);
108: printf("%s\n",asctime(&duh));
1.9 fefe 109: #endif
1.8 fefe 110: #if 0
1.7 fefe 111: char buf[30];
112: duh.tm_sec=42;
113: duh.tm_min=23;
114: duh.tm_hour=17;
115: duh.tm_mday=2;
116: duh.tm_mon=7;
117: duh.tm_year=100;
118: t=mktime(&duh);
119: printf("%s\n",asctime_r(&duh,buf));
1.8 fefe 120: #endif
1.2 fefe 121: #if 0
1.1 cvs 122: int i;
123: for (i=0; i<5; i++) {
124: fprintf(stdout,"first message\n");
125: fprintf(stdout,"second message\n");
126: fprintf(stdout,"third message\n");
127: printf("foo %d\n",i);
128: }
1.2 fefe 129: #endif
1.1 cvs 130: #if 0
131: char buf[1024];
132: sscanf("foo bar","%s",buf);
133: printf("%s\n",buf);
134: #endif
135: #if 0
136: mount("/dev/scsi/host0/bus0/target2/lun0/cd", "/cd", "iso9660", MS_MGC_VAL|MS_RDONLY, NULL);
137: perror("mount");
138: #endif
139: #if 0
140: char *t="<4>Linux version 2.4.0-test10 (leitner@hellhound) (gcc version 2.95.2 19991024 (release))";
141: int i=strtol(t+1,&t,10);
142: printf("%d %s\n",i,t);
143: #endif
144: #if 0
145: char **tmp;
146: putenv("FOO");
147: assert(1==2);
148: for (tmp=environ; *tmp; tmp++)
149: puts(*tmp);
150: #endif
151: #if 0
152: char buf[1024];
153: printf("%d\n",fprintf(stderr,"duh\n"));
154: #endif
155: #if 0
156: struct passwd *p=getpwuid(100);
157: puts(p->pw_name);
158: #endif
159: #if 0
160: int pid;
161: char name[32];
162: sscanf("1 (init","%d (%15c",&pid,name);
163: printf("pid %d name %s\n",pid,name);
164: #endif
165: #if 0
166: DIR *d=opendir("/proc");
167: if (d) {
168: struct dirent *D;
169: while (D=readdir(d))
170: puts(D->d_name);
171: closedir(d);
172: }
173: #endif
174: #if 0
175: char buf[1024];
176: int fd=open("/etc/passwd",0);
177: pread(fd,buf,30,32);
178: close(fd);
179: write(1,buf,32);
180: #endif
181: #if 0
182: char *argv[] = {"echo","foo",0};
183: char buf[100];
184: buf[5]='x';
185: sprintf(buf,"foo\n");
186: if (buf[5] == 'x')
187: exit(0);
188: else
189: exit(1);
190: execvp(argv[0],argv);
191: #endif
1.10 fefe 192: #if 0
1.1 cvs 193: struct stat64 f;
194: char buf[128];
195: fstat64(0,&f);
196: fprintf(stderr,"%d %d\n",f.st_size,sizeof(f));
197: return 0;
198: #endif
199: #if 0
200: FILE *f=fopen("foo","w");
201: fputc('a',f);
202: fputc('b',f);
203: fputc('c',f);
204: #endif
205: /* fprintf(stdout,"foo\n"); */
206: }
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